Verify the basic capability to handle the DOM API. The test is composed of a top level svg element with an onload event handler. This handler invokes core (i.e., non SVG specific) DOM API methods to modify the document's content: it removes an element, modifies an attribute and adds elements.
Run the test. No interaction required.
The test passes if the text "DOM API is supported" is shown, the text "Removing DOM Elements is not supported" is not shown, and no red is visible.